CN117072375B - Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method - Google Patents
Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method Download PDFInfo
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- CN117072375B CN117072375B CN202311329739.2A CN202311329739A CN117072375B CN 117072375 B CN117072375 B CN 117072375B CN 202311329739 A CN202311329739 A CN 202311329739A CN 117072375 B CN117072375 B CN 117072375B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wind turbine generator, a yaw starting device based on electromagnetic excitation and a starting method, which relate to the field of wind power equipment structures, and in order to shorten the starting time of the wind turbine generator and reduce the load of a local gear, the yaw starting device comprises: the cabin shell is a hollow cylindrical piece; the yaw gear is an annular piece, and the lower end face of the yaw gear is connected with an annular extension flange; the magnetic coil winding assembly is provided with a plurality of magnetic coils which are uniformly distributed on the periphery of the extension flange and the inner periphery of the cabin shell; the magnetic coil is sleeved on the periphery of the magnetic coil winding assembly; the power supply is connected to the magnetic coil and is used for supplying power to the magnetic coil; the control system is in signal connection with the power supply and is used for controlling the opening and closing of the power supply; and a starting system connected to the yaw gear and used for rotating the yaw gear. According to the yaw gear meshing part static friction reduction device, the power supply is controlled to supply power to the magnetic coil instantaneously, instantaneous electromagnetic excitation is generated, the static friction at the yaw gear meshing part can be reduced instantaneously, driving load can be reduced during yaw, and starting time is shortened.
Description
Technical Field
The invention relates to the technical field of wind power equipment structures, in particular to a wind turbine generator, a yaw starting device based on electromagnetic excitation and a starting method.
Background
The yaw mechanical system of the wind turbine generator is generally composed of a set of tower drum yaw large gear, a plurality of yaw motors, a yaw gearbox and a yaw driving gear, and power is transmitted through meshing of the tower drum yaw gear and the yaw motor gear. A plurality of yaw motors share a set of control system, but the signal transmission of the control system may have time difference, so that the yaw motors are started out of synchronization, and the load of the motors started first is overlarge; in addition, due to long-term running abrasion, irregular gaps exist at the meshing positions of the gears, so that yaw starting impact load is overlarge, a yaw large gear is damaged, and safety accidents are caused. Although yaw starting load is reduced to a certain extent by the soft start starting method, the requirements on the running working condition of the unit are high, the cost is high, the failure rate is high, the starting time is long, the starting time is about 1s, and the local gear load is still overlarge when the motors are not synchronous.
In summary, how to shorten the starting time of the wind turbine generator and reduce the load of the local gear is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a yaw starting device based on electromagnetic excitation, which can shorten the starting time of a wind turbine and reduce the load of a local gear.
The invention further provides a wind turbine comprising the starting device and a starting method applied to the wind turbine.
In order to achieve the above object, the present invention provides the following technical solutions:
a yaw actuation device based on electromagnetic actuation, comprising:
the cabin shell is a hollow cylindrical piece;
the yaw gear is arranged in the engine room shell, is an annular piece, and is connected with an annular extension flange on the lower end face;
the magnetic coil winding assembly is provided with a plurality of magnetic coils which are uniformly distributed on the periphery of the extension flange and the inner periphery of the cabin shell;
the magnetic coil is sleeved on the periphery of the magnetic coil winding assembly;
the power supply is connected to the magnetic coil and is used for supplying power to the magnetic coil;
the control system is in signal connection with the power supply and is used for controlling the opening and closing of the power supply;
and a starting system connected to the yaw gear and used for rotating the yaw gear.
In some embodiments, the starting system includes a yaw motor and a drive gear, an output of the yaw motor is connected to the drive gear, the drive gear is meshed with the yaw gear, and the yaw motor is in signal connection with the control system.
In some embodiments, the magnetic coils on the extension flange are connected in series and arranged in one group, and the plurality of groups of magnetic coils on the extension flange are connected in parallel.
In some embodiments, the magnetic coils within the nacelle housing Zhou Guanyu, which are centrally disposed with respect to a central axis of the nacelle housing, are connected in series and arranged in one set, and the plurality of sets of magnetic coils within the nacelle housing are connected in parallel.
In some embodiments, the plurality of magnetic coils disposed about the inner circumference of the nacelle housing are disposed in one-to-one correspondence with the plurality of magnetic coils disposed about the outer circumference of the extension flange.
In some embodiments, a detection device is arranged between any magnetic coil and the power supply, the detection device is used for detecting whether the magnetic coil is electrified, and the detection device is in signal connection with the control system.
In some embodiments, the yaw gear is connected to the tower by a connection.
The wind turbine generator comprises an electromagnetic excitation-based yaw starting device, wherein the electromagnetic excitation-based yaw starting device is the electromagnetic excitation-based yaw starting device in the embodiment.
A starting method is applied to the wind turbine generator set and comprises the following steps:
the control system controls the power supply to instantaneously supply power to the magnetic coil so as to instantaneously reduce static friction at the meshing position of the yaw gears;
the yaw motor is started to yaw, so that the driving load can be reduced, and the starting time is shortened.
In some embodiments, after the control system controls the power supply to instantaneously supply power to the magnetic coils and before starting the yaw motor to yaw, the control system further comprises:
the detection device detects whether all the magnetic coils are electrified or not and transmits the detection result to the control system;
when the electromagnetic coil is not connected, the control system controls the starting system to increase the driving load for starting the yaw motor so as to ensure that the yaw starting time is unchanged.
Compared with the background art, the yaw starting device based on electromagnetic excitation is characterized in that an annular extension flange is connected below a yaw gear arranged in a cabin shell, a plurality of magnetic coil winding assemblies are arranged on the outer periphery of the extension flange and the inner periphery of the cabin shell, a plurality of magnetic coils are sleeved on the outer periphery of the magnetic coil winding assemblies, the magnetic coils are connected with a power supply, the power supply is connected with a control system, the power supply can instantly supply power to the magnetic coils to generate electromagnetic excitation, static friction at the meshing position of the yaw gear is instantly reduced, and the electromagnetic excitation refers to a method for changing magnetic performance of an object by applying an electromagnetic field on the object.
Wind turbine generator system includes above-mentioned driftage starting drive based on electromagnetic excitation, and the application provides a be applied to above-mentioned wind turbine generator system's starting method, and when wind turbine generator system needed driftage, the instantaneous power supply was supplied with to the magnetic coil through control system control power, produced instantaneous electromagnetic excitation, can reduce the stiction of driftage gear meshing department in the twinkling of an eye, when driftage is carried out through starting system, can reduce drive load, shortens starting time.
Between control system control power supply and start yaw motor, detection device can detect whether all magnetic coil is all normally circular telegram, if there is the unusual circular telegram condition of magnetic coil, detection device transmits detection result to control system, increases drive load when control system control yaw motor starts, can guarantee yaw start time unchangeable, shortens to a certain extent than prior art to can reduce the load of local gear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a yaw gear and yaw motor according to the present invention;
FIG. 2 is a front view of a yaw gear and yaw motor assembly provided by the present invention;
FIG. 3 is a cross-sectional view of a yaw gear and yaw motor assembly provided by the present invention;
fig. 4 is a schematic structural diagram of a yaw starting device based on electromagnetic excitation.
In fig. 1 to 4, reference numerals include:
1 is a cabin shell, 2 is a yaw gear, 3 is a magnetic coil winding assembly, 4 is a magnetic coil, 5 is an extension flange, 6 is a yaw motor, and 7 is a connecting piece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a yaw starting device based on electromagnetic excitation, which can shorten starting time and reduce load of a local gear when being started.
The invention further provides a wind turbine generator comprising the starting device.
The application provides a yaw starting device based on electromagnetic excitation, include: nacelle housing 1, yaw gear 2, magnetic coil winding assembly 3, magnetic coil 4, power supply, control system and starting system.
Wherein the cabin shell 1 is a hollow tubular piece;
the yaw gear 2 is arranged in the engine room shell 1, the yaw gear 2 is an annular piece, and the lower end face of the yaw gear 2 is connected with an annular extension flange 5;
the magnetic coil winding assemblies 3 are provided with a plurality of magnetic coil winding assemblies 3 which are uniformly distributed on the outer periphery of the extension flange 5 and the inner periphery of the cabin shell 1;
the magnetic coil 4 is sleeved on the periphery of the magnetic coil winding assembly 3;
the power supply is connected to the magnetic coil 4 and is used for supplying power to the magnetic coil 4;
the control system is in signal connection with the power supply and is used for controlling the opening and closing of the power supply;
the starting system is connected to the yaw gear 2 and is used to rotate the yaw gear 2.
Specifically, referring to fig. 1 to 4, the yaw gear 2 is an annular gear, and is disposed inside the nacelle housing 1, a starting system for rotating the yaw gear 2 is further disposed inside the nacelle housing 1, an annular extension flange 5 is connected to the lower side of the yaw gear 2, a plurality of magnetic coil winding assemblies 3 are disposed on the periphery of the extension flange 5, and the plurality of magnetic coil winding assemblies 3 are uniformly distributed in the same horizontal plane, meanwhile, a plurality of magnetic coil winding assemblies 3 disposed in the same horizontal plane are also disposed on the inner periphery of the nacelle housing 1, a magnetic coil 4 is wound on the periphery of each magnetic coil winding assembly 3, and each magnetic coil 4 is individually connected with a power supply, so that power supply control of a single magnetic coil 4 can be realized;
the control system controls the power supply to supply power to the magnetic coil 4 so as to generate electromagnetic excitation, so that the load reduction required by the starting system to rotate the yaw gear 2 can be greatly reduced, and the starting time can be greatly shortened;
in addition, the electromagnetic induction principle of the yaw starting device based on electromagnetic excitation is simple, the reliability is high, the device cost is low, and the yaw starting device is easy to maintain and replace in time.
In some embodiments, the starting mode may be soft start or hard start, where soft start is defined as that the voltage gradually increases to a rated value when the motor starts, soft start can reduce the starting impulse current, and hard start is defined as that the motor directly outputs the rated value when the motor starts, and hard start cannot reduce the starting impulse current.
On the basis of the embodiment, the starting system comprises a yaw motor 6 and a transmission gear, wherein the output end of the yaw motor 6 is connected with the transmission gear, the transmission gear is meshed with the yaw gear 2, and the yaw motor 6 is in signal connection with the control system.
Specifically, yaw motor 6 and control system signal connection can in time accomplish yaw motor 6's opening or closing through control system, can in time control yaw motor 6 by control system opens after the power supply is supplied with power to magnet coil 4 by control system control power to realize wind turbine generator system's driftage, this process time is shorter, can reduce the required time of driftage.
In some embodiments, the magnetic coils 4 on the extension flange 5, which are arranged centrally symmetrically about the central axis of the yaw gear 2, are connected in series and arranged in one set, and the plurality of sets of magnetic coils 4 on the extension flange 5 are connected in parallel.
Specifically, the number of the plurality of magnetic coil winding assemblies 3 and the number of the plurality of magnetic coils 4 arranged on the extension flange 5 are the same and even, and a group of magnetic coils 4 which are centrally symmetrical about the central point or the central axis of the extension flange 5 are arranged into a group, the magnetic coils 4 of the same group are connected in series with a power supply, the plurality of groups of magnetic coils 4 are connected in parallel, when one magnetic coil 4 is damaged, the other magnetic coil 4 which is centrally symmetrical with the magnetic coil 4 is simultaneously powered off, and the magnetic coils 4 of other groups are not influenced, so that the stable driving force of the yaw gear 2 when being electromagnetically excited can be ensured.
On the basis of the above-described embodiment, the magnetic coils 4 arranged centrally symmetrically about the central axis of the nacelle housing 1 on the inner periphery of the nacelle housing 1 are connected in series and arranged in one group, and a plurality of groups of the magnetic coils 4 on the inner periphery of the nacelle housing 1 are connected in parallel.
Specifically, the number of the plurality of magnetic coil winding assemblies 3 and the number of the magnetic coils 4 which are arranged on the inner periphery of the nacelle housing 1 are the same and generally set to be even, the number of the magnetic coil winding assemblies 3 and the number of the magnetic coil winding assemblies 3 which are arranged on the outer periphery of the extension flange 5 which are arranged on the inner periphery of the nacelle housing 1 are the same, the magnetic coils 4 which are symmetrically arranged with respect to the central axis center of the nacelle housing 1 are connected in series and are set to be one group, and the plurality of groups of magnetic coils 4 are connected in parallel, so that other magnetic coils 4 can work normally under the condition that the magnetic coils 4 in one group are disconnected, and the driving force received in the starting process of the yaw gear 2 is ensured to be stable.
On the basis of the above embodiment, the plurality of magnetic coils 4 provided on the inner periphery of the nacelle housing 1 are provided in one-to-one correspondence with the plurality of magnetic coils 4 provided on the outer periphery of the extension flange 5.
Specifically, in the shutdown state, that is, when the wind turbine generator does not need to yaw, the plurality of magnetic coils 4 arranged on the inner periphery of the cabin shell 1 and the plurality of magnetic coils 4 arranged on the outer periphery of the extension flange 5 are arranged in a one-to-one correspondence manner, so that when the wind turbine generator needs to yaw, the corresponding magnetic coils 4 can generate enough electromagnetic excitation when the wind turbine generator is powered on instantaneously, and the same electromagnetic excitation size can be ensured when the wind turbine generator needs to yaw every time.
On the basis of the embodiment, a detection device is arranged between any magnetic coil 4 and the power supply, the detection device is used for detecting whether the magnetic coil 4 is electrified, and the detection device is in signal connection with the control system.
Specifically, detection devices are arranged between the power supply and each magnetic coil 4, the connection mode of the detection devices comprises serial connection and parallel connection, whether the magnetic coils 4 are normally electrified or not can be detected through the detection devices, detection results are transmitted to the control system, if the magnetic coils 4 which cannot be normally electrified exist, the detection devices transmit information corresponding to the magnetic coils 4 to the control system, and the control system can still ensure that the driving load is reduced and the starting time is shortened according to the driving load of the information regulation starting system.
On the basis of the above embodiment, the yaw gear 2 is connected to the tower via a connection 7.
Specifically, referring to fig. 3 and 4, the yaw gear 2 is connected to a tower through a connecting piece 7, the tower is used as a stator, the nacelle housing 1 is a rotor, and the main driving force is still mechanical driving, so that the starting device provided by the application can be modified from the existing starting device, and the production cost is reduced.
In addition to the yaw starting device based on electromagnetic excitation, the invention further provides a wind turbine generator comprising the starting device disclosed in the above embodiment, and the structure of other parts of the wind turbine generator is referred to the prior art, and will not be described herein.
The application also provides a starting method which is applied to the wind turbine generator set and comprises the following steps:
the control system controls the power supply to instantaneously supply power to the magnetic coil so as to instantaneously reduce static friction at the meshing position of the yaw gears;
the yaw motor is started to yaw, so that the driving load can be reduced, and the starting time is shortened.
Specifically, when the wind turbine generator system needs yaw, the method provided by the application is characterized in that a manual operation control system or a control system automatically regulates and controls a power supply to supply power to the magnetic coil 4 instantaneously, and the control system simultaneously controls and starts the yaw motor 6, so that the yaw time can be greatly shortened, and the static friction at the meshing position of the yaw gear 2 can be greatly reduced by electromagnetic excitation.
On the basis of the starting method, after the control system controls the power supply to instantaneously supply power to the magnetic coil and before the yaw motor is started to yaw, the method further comprises the following steps:
the detection device detects whether all the magnetic coils are electrified or not and transmits the detection result to the control system;
when the electromagnetic coil is not connected, the control system controls the starting system to increase the driving load for starting the yaw motor so as to ensure that the yaw starting time is unchanged.
Specifically, a detection device is arranged at each or each group of magnetic coils 4, the electrifying condition of the magnetic coils 4 is detected through the detection device, the detection result is transmitted to a control system, the control system analyzes the detection result, if the non-electrifiable magnetic coils 4 exist, the control system controls a starting system to increase the driving load according to the number of the non-electrifiable magnetic coils 4, so that the yaw gear 2 can bear the same driving load during each yaw, and the normal yaw of the wind turbine generator is ensured.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The wind turbine generator, the yaw starting device based on electromagnetic excitation and the starting method are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. A yaw actuation device based on electromagnetic actuation, comprising:
a nacelle housing (1) which is a hollow cylindrical member;
the yaw gear (2) is arranged in the engine room shell (1), the yaw gear (2) is an annular piece, and the lower end face of the yaw gear (2) is connected with an annular extension flange (5);
the magnetic coil winding assembly (3) is provided with a plurality of magnetic coil winding assemblies which are uniformly distributed on the outer periphery of the extension flange (5) and the inner periphery of the cabin shell (1);
the magnetic coil (4) is sleeved on the periphery of the magnetic coil winding assembly (3);
a power supply connected to the magnetic coil (4) and for supplying power to the magnetic coil (4);
the control system is in signal connection with the power supply and is used for controlling the on-off of the power supply;
a starting system connected to the yaw gear (2) and adapted to rotate the yaw gear (2);
the magnetic coils (4) which are arranged on the extending flange (5) and are arranged in a central symmetry way with respect to the central axis of the yaw gear (2) are connected in series and are arranged into a group, and a plurality of groups of the magnetic coils (4) on the extending flange (5) are connected in parallel;
the magnetic coils (4) which are arranged in the inner periphery of the cabin shell (1) and are arranged in a central symmetry way with respect to the central axis of the cabin shell (1) are connected in series and are arranged into one group, and a plurality of groups of the magnetic coils (4) in the inner periphery of the cabin shell (1) are connected in parallel;
a detection device is arranged between any magnetic coil (4) and the power supply, the detection device is used for detecting whether the magnetic coil (4) is electrified or not, and the detection device is in signal connection with the control system;
each magnetic coil (4) is individually connected with the power supply to realize power supply control of the single magnetic coil (4).
2. The yaw start device based on electromagnetic excitation according to claim 1, characterized in that the start system comprises a yaw motor (6) and a drive gear, the output of the yaw motor (6) being connected to the drive gear, the drive gear being meshed with the yaw gear (2), the yaw motor (6) being in signal connection with the control system.
3. The yaw start device based on electromagnetic excitation according to claim 1, characterized in that a plurality of the magnetic coils (4) provided at the inner periphery of the nacelle housing (1) are provided in one-to-one correspondence with a plurality of the magnetic coils (4) provided at the outer periphery of the extension flange (5).
4. The yaw actuation device based on electromagnetic actuation according to claim 1, characterized in that the yaw gear (2) is connected to the tower by a connection (7).
5. Wind turbine generator system comprising an electromagnetic excitation based yaw actuation device, characterized in that the electromagnetic excitation based yaw actuation device is an electromagnetic excitation based yaw actuation device according to claim 4.
6. A starting method, characterized by being applied to the wind turbine generator set according to claim 5, comprising:
the control system controls the power supply to instantaneously supply power to the magnetic coil so as to instantaneously reduce static friction at the meshing position of the yaw gears;
the yaw motor is started to yaw, so that the driving load can be reduced, and the starting time is shortened.
7. The method of starting up of claim 6, wherein the control system controls the power supply to instantaneously supply power to the magnetic coil and before the yaw motor is started to yaw, further comprising:
the detection device detects whether all the magnetic coils are electrified or not and transmits the detection result to the control system;
when the electromagnetic coil is not connected, the control system controls the starting system to increase the driving load for starting the yaw motor so as to ensure that the yaw starting time is unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311329739.2A CN117072375B (en) | 2023-10-13 | 2023-10-13 | Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method |
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| CN202311329739.2A CN117072375B (en) | 2023-10-13 | 2023-10-13 | Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method |
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| CN117072375B true CN117072375B (en) | 2024-01-09 |
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| CN210422874U (en) * | 2019-08-06 | 2020-04-28 | 国电联合动力技术有限公司 | Generating set driftage actuating system and generating set driftage system |
| CN210622979U (en) * | 2019-08-06 | 2020-05-26 | 国电联合动力技术有限公司 | Generating set driftage system |
| CN211692718U (en) * | 2020-02-25 | 2020-10-16 | 宁波晓风风电技术有限公司 | Automatic yaw multi-module wind driven generator |
| CN113990159A (en) * | 2021-11-23 | 2022-01-28 | 天津中德应用技术大学 | Wind turbine generator system assembly maintenance and control teaching simulation device |
| CN115929551A (en) * | 2022-12-19 | 2023-04-07 | 明阳智慧能源集团股份公司 | Combined driving yaw system of wind generating set |
| CN116517767A (en) * | 2023-03-30 | 2023-08-01 | 国能联合动力技术(保定)有限公司 | Method and device for reducing yaw starting impact of wind turbine generator |
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| CN117072375A (en) | 2023-11-17 |
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